How much equity do I need to refinance in Australia?

Refinancing your home loan can be a great way to save some money, but it's not as simple as just signing a few papers. There are a few things you need to understand first, and one of the most important is equity. So, let's get started!

Refinancing is essentially the process of replacing your existing home loan with a new one. This can be done for various reasons, such as securing a lower interest rate, changing the loan term, or tapping into your home's equity. However, it's not a decision to be taken lightly. It's crucial to understand your financial situation and the requirements of refinancing, especially when it comes to equity.

What is home equity?

In simple terms, it's the portion of your property that you truly own. It's calculated by subtracting the outstanding loan amount from the current market value of your property. For example, if your home is worth $1,000,000 and you owe $800,000 on your mortgage, your equity is $200,000.

Equity is a critical factor in refinancing because it determines how much you can borrow and what kind of loan you can get. It's a measure of your investment in your home, and lenders use it to assess the risk involved in lending to you. The more equity you have, the less risk for the lender, which can lead to better loan terms for you.

Now, let's talk about the ideal equity requirement for refinancing. In Australia, it's generally recommended that homeowners have at least 20% equity before they consider refinancing. Why 20%? With 20% equity, you're likely to get better interest rates and avoid paying Lenders Mortgage Insurance (LMI), which can be quite costly.

What is LMI?

LMI is a type of insurance that protects the lender if you default on your loan. It's typically required if you're borrowing more than 80% of your home's value, hence the 20% equity rule. The cost of LMI can vary, but it can be quite substantial and could potentially outweigh the savings you might get from refinancing.

But what if you don't have 20% equity? Well, it's not the end of the world, but it does complicate things a bit. You might still be able to refinance, but you'll likely face higher interest rates and the added cost of LMI. Plus, not all lenders will be willing to refinance a loan with less than 20% equity, so your options might be limited. Your best bet is to speak to a top mortgage broker who can help you with refinancing if you have less than 20% equity.

Factors to Consider Before Refinancing

Before you jump into refinancing, consider your personal financial circumstances. Current mortgage rates are important, but they're not the only factor. Your credit score and debt-to-income ratio also matter. Negative equity is another crucial factor. If you owe more on your mortgage than your home is worth, refinancing might not be the best idea.


Understanding equity requirements for refinancing can help you make the most of your options and avoid costly mistakes. In the end, the decision to refinance should be based on your personal circumstances and market conditions. 

About the author 

Harold Simmons

Harold is the founder and creator of the Asset Owners Discussion Project. He creates quality resources so investors can get access to information they wouldn't normally be able to access. He has been investing in real estate for almost three decades and is particularly experienced with mortgages and refinancing.

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